Phosphorus test cost in Shreveport, LA — inpatient
In Shreveport-Bossier City, LA, 4 hospitals list a cash price for phosphorus (phosphate) blood test as an inpatient: from $7.80 to $1,430.81, with a median of $9.89. The lowest listed price is at Ochsner LSU Health Shreveport — $2.09 less than the median here. Across Louisiana, the median is $16.78 at 56 hospitals.
Cash prices at 4 facilities for code 84100, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Aug 6, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Shreveport-Bossier City, LA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Ochsner LSU Health Shreveport lowest Shreveport, LA · (318) 675-5058 HC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES | $7.80 | $30.00 | — | 74% | — source file |
| Ochsner LSU Health Shreveport lowest Shreveport, LA · (318) 675-5058 HC PHOSPHORUS | $7.80 | $30.00 | — | 74% | — source file |
| Ochsner LSU Health Shreveport lowest Shreveport, LA · (318) 675-5058 HC PHOSPHORUS, FECES | $7.80 | $30.00 | — | 74% | — source file |
| Ochsner LSU Health Shreveport - St. Mary Medical Center Shreveport, LA · (318) 626-4300 HC PHOSPHORUS | $8.40 | $30.00 | — | 72% | — source file |
| Ochsner LSU Health Shreveport - St. Mary Medical Center Shreveport, LA · (318) 626-4300 HC PHOSPHORUS, FECES | $8.40 | $30.00 | — | 72% | — source file |
| Ochsner LSU Health Shreveport - St. Mary Medical Center Shreveport, LA · (318) 626-4300 HC CATHARTIC LAXATIVE PROF - PHOSPHORUS, FECES | $8.40 | $30.00 | — | 72% | — source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Elect Qt Feces Phos Inorganp-M | $11.38 | $14.22 | — | 20% | Apr 1, 2026 source file |
| Willis Knighton Medical Center Shreveport, LA · (318) 212-4000 Phosphorus Inorganic | $23.75 | $29.69 | — | 20% | Apr 1, 2026 source file |
| PAM Specialty Hospital of Shreveport Shreveport, LA Phosphorus | $1,430.81 | $1,430.81 | $1,001.57–$1,216.19 | — | Aug 6, 2026 source file |
Inpatient: lowest $7.80, median $9.89, highest $1,430.81 — a 183.4× difference within the same market.
As an outpatient, the same code is billed by 3 facilities here, median $8.40 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A phosphorus test measures phosphate in the blood. It is used with calcium for kidney disease, bone disease and parathyroid problems.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.